Hair drier



FIG. 1 is a front perspective view of the hair drier showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a back perspective view thereof; and,

FIG. 9 is a reference view showing the state of use that the display at the upper back part provides the user with various information.

The broken lines depict portions of the hair drier that form no part of the claimed design. 

CLAIM The ornamental design for a hair drier, as shown and described. 